Asus P4C800 User Manual page 79

If you are using an unlocked CPU, the item CPU Ratio appears under
the AI Overclock Tuner item. You may select your desired ratio from
the available options.
When you set the AI Overclocking Tuner item to [Manual], the related
overclocking items appear.
Configure System Frequency/Voltage
AI Overclock Tuner
CPU External Frequency (MHz)
DRAM Frequency
AGP/PCI Frequency (MHz)
CPU VCore Voltage
DDR Reference Voltage
AGP VDDQ Voltage
Performance Mode
CPU External Frequency (MHz) [XXX]
Indicates the frequency sent by the clock generator to the system bus and
PCI bus. The bus frequency (external frequency) multiplied by the bus
multiple equals the CPU speed. The value of this item is auto-detected by
BIOS. The values range from 100 to 400.
DRAM Frequency [Auto]
Allows you to set the DDR operating frequency. Configuration options:
[266 MHz] [333 MHz] [400 MHz] [Auto]
AGP/PCI Frequency (MHz) [Auto]
Allows you to adjust to a higher AGP/PCI frequency for better system
performance and overclocking capability. Configuration options: [Auto]
[66.66/33.33] [72.73/36.36] [80.00/40.00]
Selecting a very high AGP/PCI frequency may cause the system to
become unstable! If this happens, revert to the default setting.
ASUS P4C800 motherboard user guide
[Manual]
[133]
[Auto]
[Auto]
[Auto]
[Auto]
[1.50V]
[Auto]
(value is auto-detected)
Select Screen
Select Item
+- Change Option
F1 General Help
F10 Save and Exit
ESC Exit
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